Power assisting mechanism, refrigerator door module and refrigerator

Abstract

The utility model relates to the field of refrigerators, in particular to a power assisting mechanism, a refrigerator door module and a refrigerator. The power assisting mechanism comprises a hinge base, a connecting base and an elastic energy storage assembly. The hinge seat is provided with a hinge shaft, and the connecting seat is provided with a hinge hole matched with the hinge shaft and can rotate relative to the hinge shaft. The elastic energy storage assembly is arranged on the hinge base and connected with the connecting base, so that when the connecting base rotates in the first direction relative to the hinge shaft, the elastic energy storage assembly accumulates elastic potential energy, and the elastic energy storage assembly can drive the connecting base to rotate in the second direction relative to the hinge shaft through the accumulated elastic potential energy in cooperation with external force; and the first direction is opposite to the second direction. The power assisting mechanism can be installed at the refrigerator door of the refrigerator, elastic potential energy is accumulated in the door closing process, the accumulated elastic potential energy is matched with external force to drive the refrigerator door to be opened, a user can conveniently apply small external force to open the refrigerator door, and the refrigerator door opening difficulty is reduced.

Description

Technical Field

[0001] This application relates to the field of refrigerators, and in particular to an assisting mechanism, a door module, and a refrigerator. Background Art

[0002] To ensure the heat preservation performance of the refrigerator, it is usually required that the available space inside the refrigerator has a good and stable sealed environment, and close cooperation is needed between relevant components such as the door. However, this structure has a drawback: when it is necessary to open the appliance to take out the items inside the appliance, there will be a phenomenon that the opening force is large, that is, it is difficult to open the door.

[0003] The reason for this situation is that when the door is opened, external hot air will be sent into the refrigerator. After the refrigerator runs stably, the temperature inside the refrigerator drops to the set temperature, and the air pressure inside the refrigerator also decreases accordingly, forming a pressure difference with the outside. Coupled with the good sealing effect, it is difficult to open the door.

[0004] To solve this problem, the industry usually adopts the method of opening holes in the drainage pipe at the bottom of the refrigerator to balance the air pressure inside and outside the refrigerator. However, this method will cause the cold air inside the refrigerator to leak out, resulting in an increase in product energy consumption. Utility Model Content

[0005] This application provides an assisting mechanism, a door module, and a refrigerator, which facilitate users to apply a small external force to drive the door to open and solve the problem of difficult door opening.

[0006] In a first aspect, this application provides an assisting mechanism, including:

[0007] A hinge seat provided with a hinge shaft;

[0008] A connecting seat provided with a hinge hole adapted to the hinge shaft and capable of rotating relative to the hinge shaft;

[0009] An elastic energy storage component connecting the hinge seat and the connecting seat. When the connecting seat rotates relative to the hinge shaft in a first direction, the elastic energy storage component is driven to accumulate elastic potential energy, and the elastic energy storage component is used to cooperate with the elastic potential energy to drive the connecting seat to rotate relative to the hinge shaft in a second direction;

[0010] The first direction and the second direction are opposite.

[0011] In some embodiments, a transmission gear ring is provided between the elastic energy storage component and the connecting seat. The transmission gear ring is rotatably connected to the hinge shaft and is circumferentially relatively locked with the connecting seat. The outer periphery of the transmission gear ring is provided with first teeth, and the elastic energy storage component includes:

[0012] The winding shaft is connected to the hinge seat, and the winding shaft and the hinge shaft are arranged parallel to each other at a preset distance;

[0013] The winding box is rotatably connected to the winding shaft, and a second set of teeth meshing with the first set of teeth is provided on the outer periphery of the winding box.

[0014] The winding coil is connected to the winding box and the winding shaft at both ends respectively.

[0015] In some embodiments, the transmission gear ring is slidably connected to the hinge shaft in a lifting manner. When the transmission gear ring is in the first position, it is circumferentially locked with the connecting seat and meshes with the winding box.

[0016] The transmission gear ring descends from the first position to the second position along the hinge shaft and disengages from the connecting seat and the winding box.

[0017] It further includes a limiting component provided on the hinge seat. When the transmission gear ring is in the first position, the limiting component disengages from the winding box. When the transmission gear ring moves to the second position, it drives the limiting component to lock the winding box.

[0018] In some embodiments, the hinge seat is provided with a lifting guide hole, and the limiting component includes:

[0019] The winding stop member includes a lifting guide rod cooperating with the lifting guide hole, a first stop rod connected to the top end of the lifting guide rod, and a second stop rod connected to the lifting guide rod and disposed in contact with the bottom surface of the transmission gear ring. When the transmission gear ring moves along the hinge shaft to the second position, it presses down the second stop rod and drives the lifting guide rod to move, so that the first stop rod moves to abut and lock the second set of teeth.

[0020] The first return spring is sleeved on the lifting guide rod and abuts against the hinge seat, and is used to drive the lifting guide rod to rise and separate the first stop rod from the second set of teeth.

[0021] In some embodiments, the winding stop member further includes a third stop rod, and the third stop rod is connected to the bottom end of the lifting guide rod and is locked below the bottom of the hinge seat.

[0022] In some embodiments, the connecting seat is provided with a first electromagnet assembly, and the first electromagnet assembly is used to adsorb the transmission gear ring to move towards the first position.

[0023] In some embodiments, the transmission gear ring is provided with a second electromagnet assembly corresponding to the first electromagnet assembly.

[0024] In some embodiments, a second return spring is connected between the transmission gear ring and the hinge seat, and the second return spring is used to drive the transmission gear ring to move towards the second position.

[0025] In some embodiments, a control switch is connected to the first electromagnet assembly and the second electromagnet assembly.

[0026] In a second aspect, the present application provides a door module for a box, including a door body, a frame body, and a boosting mechanism as described in any one of the above. The hinge seat is installed on the frame body, and the connecting seat is installed on the door body.

[0027] In some embodiments, when the door module for a box is provided with a first electromagnet assembly, a second electromagnet assembly, and a control switch, the control switch is configured to be disconnected when the door module for a box is in a closed state, so that the first electromagnet assembly and the second electromagnet assembly are powered off, and to be closed when an opening operation is performed on the door module for a box, so that the first electromagnet assembly and the second electromagnet assembly are powered on to generate magnetism and attract each other.

[0028] In a third aspect, the present application provides a refrigerator that applies the door module for a box described in any one of the above.

[0029] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art: Taking the application of this boosting mechanism at the refrigerator door as an example for illustration, the specific application scenario is not limited to the refrigerator door. By connecting the hinge seat to the frame body of the refrigerator and connecting the connecting seat to the refrigerator door, during the process of closing the door, the door drives the connecting seat to rotate relative to the hinge axis in a first direction, and the connecting seat drives the elastic energy storage assembly to generate a corresponding deformation to store elastic potential energy; during the process of opening the door, the stored elastic potential energy and the external force applied by the user form a resultant force that acts on the door together, so that the door rotates in a second direction opposite to the first direction, assisting in opening the door, facilitating the user to open the refrigerator door with a smaller driving force, and reducing the difficulty of opening the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the drawings do not constitute a proportional limitation.

[0033] Figure 1 Schematic diagram of the refrigerator provided by the embodiment of the present application;

[0034] Figure 2 is Figure 1 Enlarged view of the boosting mechanism of part A in

[0035] Figure 3 is Figure 1 Enlarged view of the boosting mechanism of part A in

[0036] Figure 4 Figure 3 Schematic diagram of the hinge seat of the boosting mechanism and the elastic energy storage component;

[0037] Figure 5 is Figure 4 Exploded view;

[0038] Figure 6 is Figure 5 Structural diagram of the spring stop in

[0039] Figure 7 is Figure 1 Schematic diagram of the door of the box in

[0040] Figure 8 is Figure 7 Enlarged schematic view of part B in

[0041] Explanation of reference numerals:

[0042] 10 - Door body;

[0043] 20 - Connecting seat; 21 - First limiting tooth;

[0044] 30 - Hinge seat; 31 - Adjusting foot; 32 - Hinge shaft; 33 - Transmission gear ring; 331 - Second limiting tooth; 34 - Spring shaft; 35 - Spring box; 36 - Spring coil; 37 - Spring stop; 371 - Lifting guide rod; 372 - First stop bar; 373 - Second stop bar; 374 - Third stop bar; 38 - First return spring; 39 - Second return spring. Detailed implementation manners

[0045] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0046] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0047] For ease of description, spatially relative relationship terms may be used in the text to describe the relative positional relationship or movement of one element or feature shown in the figure relative to another element or feature. These relative relationship terms are, for example, "inner", "outer", "inner side", "outer side", "below", "beneath", "above", "over", "front", "rear", etc. Such spatially relative relationship terms are intended to include different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figure undergoes a position flip or attitude change or motion state change, then these directional indications will change accordingly. For example, an element described as "below" or "beneath" another element or feature will subsequently be oriented as "above" or "over" the other element or feature. Therefore, the exemplary term "below" can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatially relative relationship descriptors used in the text are interpreted accordingly.

[0048] To solve the technical problem in the prior art that it is difficult to open the refrigerator door due to the negative pressure generated inside the refrigerator after it operates stably, the present application provides an assisting mechanism, a door module and a refrigerator, which can cooperate with the user to open the refrigerator door with a relatively small external force and solve the technical problem of difficult door opening.

[0049] An embodiment of the present application provides an assisting mechanism, as Figures 1 to 3 shown. The assisting mechanism includes a hinge seat 30, a connecting seat 20 and an elastic energy storage component; the hinge seat 30 is provided with a hinge shaft 32, and the connecting seat 20 is provided with a hinge hole adapted to the hinge shaft 32 and can rotate relative to the hinge shaft 32. The connecting seat 20 is used to connect with the door body 10. The connecting seat 20 is provided with a plurality of mounting holes to facilitate mounting and fixing relative to the door body 10 through screws and the mounting holes; the hinge seat is used to connect with the refrigerator body or frame. The hinge seat 30 is also provided with a plurality of mounting holes to facilitate mounting to the refrigerator body or frame through bolts and the mounting holes.

[0050] The elastic energy storage component is arranged on the hinge seat 30 and connected to the connecting seat 20, so that when the connecting seat 20 rotates in a first direction relative to the hinge shaft 32, the elastic energy storage component accumulates elastic potential energy, so that the elastic energy storage component can drive the connecting seat 20 to rotate in a second direction relative to the hinge shaft 32 through its accumulated elastic potential energy in cooperation with external force, and the first direction and the second direction are opposite, that is, the elastic potential energy accumulated during the door closing process can assist in opening the door.

[0051] During use, the hinge seat 30 needs to be connected to the refrigerator body or frame, and the connecting seat 20 needs to be connected to the refrigerator door 10. In the process of closing the door, i.e., the door body 10, the door body 10 drives the connecting seat 20 to rotate relative to the hinge axis in a first direction, and the connecting seat 20 drives the elastic energy storage component to produce corresponding deformation, thereby accumulating elastic potential energy; in the process of opening the door, i.e., the door body 10, the accumulated elastic potential energy cooperates with the external force applied by the user to form a combined force to act on the door body 10, so that the door body 10 rotates in a second direction opposite to the first direction, assisting the refrigerator door 10 to open, making it easier for the user to open the refrigerator door with a smaller driving force, thereby reducing the difficulty of opening the refrigerator door 10.

[0052] In some embodiments, Figure 4 and Figure 5 As shown, the elastic energy storage assembly and the connecting seat 20 are connected by transmission through the transmission gear ring 33. The transmission gear ring 33 is rotatably sleeved on the hinge shaft 32 and can rotate relative to the hinge shaft 32. The outer circumference of the transmission gear ring 33 is evenly provided with first gear teeth. On the other hand, the transmission gear ring 33 and the connecting seat 20 are relatively locked along the circumference of the transmission gear ring 33, that is, the transmission gear ring 33 and the connecting seat 20 do not rotate relative to each other.

[0053] like Figure 4 , Figure 7 and Figure 8 As shown, the lower end surface of the connection seat 20 is provided with a first limiting tooth 21, and the upper end surface of the transmission gear ring 33 is provided with a second limiting tooth 331. When the transmission gear ring 33 and the connection seat 20 are fitted, the first limiting tooth 21 and the second limiting tooth 331 are engaged with each other. In the process of closing the door body 10, the door body 10 rotates relative to the hinge shaft 32, thereby driving the connection seat 20 installed on the door body 10 and the transmission gear ring 33 matched with the connection seat 20 to rotate synchronously relative to the hinge shaft 32 along the first direction, and the elastic energy storage component is driven by the rotation of the transmission gear ring 33 to accumulate elastic potential energy.

[0054] It can be understood that the circumferential limiting structure of the transmission gear ring 33 and the connecting seat 20 is not limited to the cooperation of the first limiting tooth 21 and the second limiting tooth 331. It is also possible to set a limiting column at the corresponding position of one and a limiting groove on the other as needed, and realize the relative fixation of the transmission gear ring 33 and the connecting seat 20 along the circumferential direction through the cooperation of the limiting column and the limiting groove.

[0055] Further refer to Figure 4 and Figure 5 In the embodiment of the present application, the elastic energy storage component includes a mainspring shaft 34, a mainspring box 35 and a mainspring coil 36. An installation hole for the mainspring shaft 34 is reserved at the corresponding position of the hinge seat 30. The mainspring shaft 34 and the hinge shaft 32 are parallel to each other and arranged at a set spacing. The mainspring box 35 is rotatably connected to the mainspring shaft 34. A number of second gear teeth are evenly arranged on the outer periphery of the mainspring box 35, and the transmission gear ring 33 drives the mainspring box 35 to rotate by means of the engagement of the second gear teeth and the first gear teeth.

[0056] The mainspring box 35 is provided with a hollow installation cavity. The top end of the mainspring shaft 34 extends into this installation cavity. One end of the outer periphery of the mainspring coil 36 is fixedly connected to the inner wall of the mainspring box 35, and one end of the inner periphery of the mainspring coil 36 is clamped and fixed to the top end of the mainspring shaft 34. During the process of closing the door, the door body 10 drives the transmission gear ring 33 to rotate relative to the hinge shaft 32 in the first direction through the connecting seat 20. The transmission gear ring 33 drives the mainspring box 35 to rotate, and the mainspring coil 36 contracts to store elastic potential energy. The elastic potential energy stored in the mainspring coil 36 generates a tendency to drive the mainspring box 35 to rotate in the reverse direction, and further generates a tendency to drive the transmission gear ring 33 and the connecting seat 20 to rotate in the second direction. During the process of opening the door, the user only needs to apply a small force to the door body 10, which forms a resultant force with the driving force generated by the elastic potential energy stored in the elastic energy storage component, reducing the difficulty of opening the door body 10.

[0057] The setting of the transmission gear ring 33 facilitates the off - position arrangement of the elastic energy storage component and the hinge shaft 32, leaving sufficient arrangement space for the elastic energy storage component. Particularly, the diameter of the transmission gear ring 33 is larger than the diameter of the mainspring box 35. When the mainspring coil 36 drives the mainspring box 35 to rotate and drives the transmission gear ring 33 to rotate, it realizes a certain speed reduction and torque increase effect, facilitating the opening of the connecting seat 20 and the door body 10.

[0058] Refer to Figure 2 and Figure 3 In some embodiments, in order to prevent the elastic potential energy stored in the elastic energy storage component from generating a tendency to drive the door body 10 to open in the closed state of the door body 10, resulting in poor stability of the door body 10 closing. The transmission gear ring 33 is set to be able to lift and slide relative to the hinge shaft 32. When the transmission gear ring 33 is in the first position, that is, at the top end of the mainspring shaft 34, it is circumferentially relatively locked with the connecting seat 20. And at this time, the transmission gear ring 33 cooperates with the second gear teeth of the mainspring box 35 through the first gear teeth on its outer periphery. This process corresponds to the process of closing the door body 10. The door body 10 drives the connecting seat 20 to rotate relative to the hinge shaft 32 in the first direction. Since the transmission gear ring 33 and the connecting seat 20 are circumferentially locked, the connecting seat 20 can drive the transmission gear ring 33 to rotate relative to the hinge shaft 32 in the first direction. The transmission gear ring 33 drives the mainspring box 35 relative to the mainspring shaft 34 and drives the mainspring coil 36 to contract, storing elastic potential energy.

[0059] Wherein, the assist mechanism being in the first state means that the transmission gear ring 33 is in the first position and is in contact and cooperation with the connecting seat 20 and the spring box 35 respectively; the assist mechanism being in the second state means that the transmission gear ring 33 is in the second position and is disengaged from the connecting seat 20 and the spring box 35 respectively.

[0060] After the door body 10 is closed, the transmission gear ring 33 can slide down from the first position to the second position along the hinge shaft 32. The transmission gear ring 33 in the second position is disengaged from the connecting seat 20 and the spring box 35 respectively. That is, there is no circumferential locking between the transmission gear ring 33 and the connecting seat 20, and at the same time, it is disengaged from the spring box 35. The accumulated elastic potential energy cannot act on the transmission gear ring 33 and the connecting seat 20, without affecting the reliability of the closing of the door body 10.

[0061] Reference Figures 4 to 6 To prevent the spring box 35 from losing its limit and rotating to release elastic potential energy after being disengaged from the transmission gear ring 33, resulting in the accumulated elastic potential energy not being available for assisting in opening the door body 10. The assist mechanism provided in this embodiment further includes a limit component, which is installed and connected to the hinge seat 30 and can limit or release the limit of the spring box 35. When the transmission gear ring 33 is in the first position, that is, engaged with the spring box 35, the limit component is disengaged from the spring box 35 to release the limit on the spring box 35, so that the transmission gear ring 33 can drive the spring box 35 to rotate and accumulate elastic potential energy during the closing process of the door body 10. When the transmission gear ring 33 moves to the second position, that is, disengaged from the spring ring 36, it drives the limit component to act, and the limit component locks the spring box 35, which not only avoids the release of the elastic potential energy accumulated in the spring box 35, but also does not generate a tendency to drive the connecting seat 20 and the door body 10 to rotate and open because the transmission gear ring 33 is disengaged from the spring box 35, ensuring the reliability of the closing of the door body 10.

[0062] When the door body 10 needs to be opened, the transmission gear ring 33 is reset from the second position to the first position again, achieving circumferential limit with the connecting seat 20 and engagement with the spring box 35. The limit component also returns to the state of being disengaged from the spring box 35. The accumulated elastic potential energy can act on the door body 10 again through the spring box 35 and the transmission gear ring 33, forming a resultant force with the external force for driving the door body 10 to open, reducing the external force required to open the door body 10.

[0063] In some embodiments, the principle of the limit component for locking and unlocking the spring box 35 is as follows: The hinge seat 30 is provided with a lifting guide hole, and the limit component includes a spring rotation stop 37 and a first return spring 38. As Figure 6As shown, the spring stop member 37 at least includes a lifting guide rod 371, a first stop rod 372, and a second stop rod 373. The lifting guide rod 371 cooperates with the lifting guide hole on the hinge seat 30 and can slide up and down relative to the hinge seat 30; the first stop rod 372 is connected to the top end of the lifting guide rod 371 and is substantially perpendicular to the lifting guide rod 371, and the first stop rod 372 is connected to the middle section of the lifting guide rod 371 and is arranged to fit against the lower surface of the transmission gear ring 33. The first return spring 38 is sleeved on the outer periphery of the lifting guide rod 371 and abuts against the upper end surface of the hinge seat 30.

[0064] When the transmission gear ring 33 is in the first position, the transmission gear ring 33 is in contact and cooperation with the connecting seat 20 and the spring box 35 respectively. Due to the action of the first return spring 38, the lifting guide rod 371 is in a state of abutting against the connecting seat 20 upward; the first stop rod 372 corresponds to the height position of the gap between the spring box 35 and the connecting seat 20, and the first stop rod 372 disengages from the second round teeth on the outer periphery of the spring box 35, and does not limit the spring box 35, and does not affect the rotation of the spring box 35 and the accumulation of elastic potential energy. The second stop rod 373 fits against the lower end surface of the transmission gear ring 33.

[0065] When the transmission gear ring 33 moves downward to the second position, the transmission gear ring 33 disengages from the connecting seat 20 and the spring box 35 respectively. The transmission gear ring 33 drives the lifting guide rod 371 to move downward along the lifting guide hole by pressing down the second stop rod 373, compresses the first return spring 38 and drives the first stop rod 372 to move downward at the same time, so that the first stop rod 372 enters the gap between the adjacent second round teeth on the outer periphery of the spring box 35, and stops the spring box 35, realizing the preservation of the elastic potential energy accumulated in the spring box 35 and the spring coil 36 in the closed state of the door body 10, without affecting the reliability of the closing of the door body 10.

[0066] When it is necessary to assist in opening the door body 10, the transmission gear ring 33 is reset from the second position to the first position and is in contact and cooperation with the connecting seat 20 and the spring box 35 respectively. Under the action of the first return spring 38, the lifting guide rod 371 moves upward relative to the hinge seat 30, so that the second stop rod 373 remains in a state of fitting against the lower end surface of the transmission gear ring 33, and the first stop rod 372 also resumes the state of abutting against the connecting seat 20 and releasing the locking of the spring box 35. The elastic potential energy accumulated in the spring box 35 and the spring coil 36 assists in opening the door body 10 through the rotation of the spring box 35 and the transmission action of the transmission gear ring 33, reducing the opening difficulty of the door body 10.

[0067] Preferably, at least two sets of lifting guide rods 371 can be arranged in parallel with each other to improve the accuracy of the lifting movement of the mainspring stop 37, and can accurately lock or unlock the mainspring box 35. In addition, the mainspring stop 37 can also be provided with a third stop lever 374 as required. The third stop lever 374 is connected to the bottom end of the lifting guide rod 371 and is clamped and limited below the bottom of the hinge seat 30. With the clamping and limiting of the third stop lever 374, the lifting guide rod 371 is prevented from falling off relative to the hinge seat 30.

[0068] During the installation of the mainspring stop 37, the lifting guide rod 371 can be inserted into the lifting guide hole on the upper end surface of the hinge seat 30, and then the part below the bottom of the hinge seat 30 is bent to form the third stop lever 374.

[0069] In some embodiments, the movement control of the transmission gear ring 33 between the first position and the second position is as follows:

[0070] The transmission gear ring 33 is made of a material such as iron or stainless steel that can be adsorbed by a magnet. A first electromagnet assembly is provided in the connecting seat 20. The first electromagnet assembly mainly includes an iron core and a current-carrying coil wound around the outer periphery of the iron core. The specific structure can refer to the prior art. By energizing the first electromagnet assembly to generate magnetism to adsorb the transmission gear ring 33, the transmission gear ring 33 is moved to the first position and is in contact and cooperation with the connecting seat 20 and the mainspring box 35. When it is necessary to move the transmission gear ring 33 to the second position, the first electromagnet assembly can be powered off, and the transmission gear ring 33 is moved from the first position to the second position and separated from the connecting seat 20 and the mainspring box 35 by means of the gravity of the transmission gear ring 33 or manual driving.

[0071] To improve the convenience of the lifting movement of the transmission gear ring 33 between the first position and the second position, a second electromagnet assembly can also be provided in the transmission gear ring 33 as required. When it is necessary for the transmission gear ring 33 to move to the first position, the first electromagnet assembly and the second electromagnet assembly can be energized with the same-direction current, and their magnetic field directions are the same, so that their opposite magnetic poles are arranged up and down relatively, and they adsorb each other to make the transmission gear ring 33 move to the first position.

[0072] When it is necessary for the transmission gear ring 33 to move to the second position and separate from the connecting seat 20 and the mainspring box 35, the first electromagnet assembly and the second electromagnet assembly are respectively energized with reverse currents, so that the magnetic field directions generated by them are opposite, and the same magnetic poles are arranged up and down relatively. With the magnetic repulsive force generated by the first electromagnet assembly and the second electromagnet assembly, the transmission gear ring 33 is driven to move away from the connecting seat 20 and move to the second position.

[0073] Considering the inconvenience of separately controlling the current directions of the first electromagnet assembly and the second electromagnet assembly. A preferred embodiment of the present application further includes connecting a second return spring 39 between the transmission gear ring 33 and the hinge seat 30. When it is necessary for the transmission gear ring 33 to move to the first position, the transmission gear ring 33 is adsorbed to move to the first position by means of the first electromagnet assembly or the magnetic suction force generated by the energization of the first electromagnet assembly and the second electromagnet assembly, and the second return spring 39 is stretched. When it is necessary for the transmission gear ring 33 to move to the second position, the first electromagnet assembly and the second electromagnet assembly are de-energized, and under the action of the pulling force of the second return spring 39, the transmission gear ring 33 moves downward along the hinge shaft 32 to the second position, separates from the connecting seat 20 and disengages from the mainspring box 35.

[0074] Since the second return spring 39 presses down the mainspring stop 37 and compresses the first return spring 38 during the process of pulling the transmission gear ring 33 downward, the elastic coefficient of the second return spring 39 is greater than that of the first return spring 38.

[0075] By arranging the second return spring 39, the transmission gear ring 33 can be driven to move downward to the second position, so that the first electromagnet assembly or the first electromagnet assembly and the second electromagnet assembly are only used to drive the transmission gear ring 33 to move to the first position. When the first electromagnet assembly and the second electromagnet assembly are arranged at the same time, the two can be connected in series, without adjusting the current direction, which simplifies the structure of the power supply circuit.

[0076] Preferably, the first electromagnet assembly and the second electromagnet assembly are connected with a control switch, and the presence or absence of magnetism of the first electromagnet assembly and the second electromagnet assembly can be controlled by operating the control switch, and the control switch can be associated with the door opening and closing actions. When the door body 10 is in the closed state, the control switch is automatically disconnected (the switch structure of the refrigerator light can be referred to, or a touch button can be set for operation control); when the door opening action is executed, the control switch is closed to supply power to the first electromagnet assembly and the second electromagnet assembly.

[0077] The embodiment of the present application further provides a door module for a box, and the door module includes a door body 10, a frame body and the assisting mechanism provided in the above embodiment. The hinge seat 30 is installed on the box body through the mounting holes and fastening screws, and the connecting seat 20 is installed on the door body 10 through the mounting holes and fastening screws. An adjusting foot 31 is further provided on the bottom end face of the hinge seat 30, and the height is adjusted by screwing the adjusting foot 31 to assist in supporting the hinge seat 30 and improve the stability of the door module for a box.

[0078] In some embodiments, the door module includes a first electromagnet assembly disposed within the connecting base 20 and a second electromagnet assembly disposed on the transmission gear ring 33. The first electromagnet assembly and the second electromagnet assembly can be connected in parallel or in series in the same power supply circuit, and the power supply circuit is provided with a control switch to achieve on / off control of the first electromagnet assembly and the second electromagnet assembly by means of the control switch.

[0079] When the door module is in the closed state, the control switch is turned off, causing the first electromagnet assembly and the second electromagnet assembly to lose magnetism. The transmission gear ring 33 is separated from the connecting base 20 and the spring box 35, and the limiting assembly stops the rotation of the spring box 35. The assisting mechanism does not assist the door body 10 through the transmission gear ring 33 and the connecting base 20, ensuring the reliability of the closure of the door body 10. When the door module is actuated to open the door, the control switch is closed, and the first electromagnet assembly and the second electromagnet assembly are energized and attracted to each other. The transmission gear ring 33 is reset to the first position and comes into contact and cooperation with the connecting base 20 and the spring box 35. The limiting assembly releases the limit on the spring box 35, and the elastic potential energy accumulated by the spring coil 36 provides an opening assist to the connecting base 20 and the door body 10 through the rotation of the spring box 35 and the transmission of the transmission gear ring 33, reducing the difficulty of opening the door body 10.

[0080] Exemplarily, a corresponding sensor can be provided inside the handle of the door body 10, which drives the control switch to close when it detects that the hand is approaching to perform the door opening action. Or the control switch can be directly disposed on the handle of the door body 10.

[0081] The embodiment of the present application further provides a refrigerator that applies the door module provided in the above embodiment. For other parts of the refrigerator, reference can be made to the prior art, and the present application will not elaborate further.

[0082] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be executed in the specific order described or illustrated, unless the execution order is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0083] Although terms such as first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another region, layer, or section. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms do not imply an order or sequence when used in the text. Therefore, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the exemplary embodiments.

[0084] The above description is only a specific embodiment of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will conform to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A boosting mechanism, characterized in that, Comprising: A hinge seat provided with a hinge shaft; A connecting seat provided with a hinge hole adapted to the hinge shaft and capable of rotating relative to the hinge shaft; An elastic energy storage component connecting the hinge seat and the connecting seat. When the connecting seat rotates relative to the hinge shaft in a first direction, the elastic energy storage component is driven to store elastic potential energy, and the elastic energy storage component is used to cooperate with the elastic potential energy to drive the connecting seat to rotate relative to the hinge shaft in a second direction; The first direction and the second direction are opposite.

2. The boosting mechanism according to claim 1, wherein A transmission gear ring is provided between the elastic energy storage component and the connecting seat. The transmission gear ring is rotatably connected to the hinge shaft and is circumferentially relatively locked with the connecting seat. The outer periphery of the transmission gear ring is provided with first teeth. The elastic energy storage component includes: A mainspring shaft connected to the hinge seat, and the mainspring shaft and the hinge shaft are arranged parallel to each other at a preset distance; A mainspring box rotatably connected to the mainspring shaft, and the outer periphery of the mainspring box is provided with second teeth meshing with the first teeth; A mainspring coil, with both ends respectively connected to the mainspring box and the mainspring shaft.

3. The assisting mechanism according to claim 2, wherein The transmission gear ring is vertically slidably connected to the hinge shaft. When the transmission gear ring is in a first position, it is circumferentially locked with the connecting seat and meshes with the mainspring box; The transmission gear ring descends from the first position to a second position along the hinge shaft and disengages from the connecting seat and the mainspring box; It further includes a limiting component provided on the hinge seat. When the transmission gear ring is in the first position, the limiting component disengages from the mainspring box. When the transmission gear ring moves to the second position, the limiting component is driven to lock the mainspring box.

4. The assisting mechanism according to claim 3, wherein, The hinge seat is provided with a lifting guide hole. The limiting component includes: A mainspring rotation stop member, including a lifting guide rod cooperating with the lifting guide hole, a first stop rod connected to the top end of the lifting guide rod, and a second stop rod connected to the lifting guide rod and arranged in contact with the bottom surface of the transmission gear ring. When the transmission gear ring moves to the second position along the hinge shaft, it presses the second stop rod and drives the lifting guide rod to move, so that the first stop rod moves to abut and lock the second teeth; A first return spring sleeved on the lifting guide rod and abutting against the hinge seat, for driving the lifting guide rod to rise and separating the first stop rod from the second teeth.

5. The assisting mechanism according to claim 4, characterized in that, The mainspring rotation stop member further includes a third stop rod, and the third stop rod is connected to the bottom end of the lifting guide rod and is locked below the bottom of the hinge seat.

6. The boosting mechanism according to any one of claims 3-5, characterized in that The connecting seat is provided with a first electromagnet component for adsorbing the transmission gear ring to move towards the first position.

7. The boosting mechanism according to claim 6, wherein The transmission gear ring is provided with a second electromagnet component corresponding to the first electromagnet component.

8. The assisting mechanism according to claim 7, wherein A second return spring is connected between the transmission gear ring and the hinge seat, and the second return spring is used to drive the transmission gear ring to move towards the second position.

9. The boosting mechanism according to claim 7, characterized in that, The first electromagnet component and the second electromagnet component are connected with a control switch.

10. A box door module, characterized in that, Comprising a door body, a frame body and the boosting mechanism according to any one of claims 1 to 9, wherein the hinge seat is installed on the frame body, and the connecting seat is installed on the door body.

11. The door module according to claim 10, wherein And when the cabinet door module is provided with a first electromagnet assembly, a second electromagnet assembly and a control switch, the control switch is configured to be disconnected when the cabinet door module is in a closed state, so that the first electromagnet assembly and the second electromagnet assembly are de-energized, and to be closed when the cabinet door module is performing an opening action, so that the first electromagnet assembly and the second electromagnet assembly are energized to generate magnetism and attract each other.

12. A refrigerator, characterized in that, Apply the cabinet door module according to claim 10 or 11.

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